POSIX

POSIX (Portable Operating System Interface) is a family of IEEE and Open Group standards that define a consistent operating system API, command line shell, and utility interfaces for maintaining compatibility between Unix and Unix-like systems. It is a specification rather than a network API, and there is no public REST or HTTP interface for the standard.

POSIX is profiled on the APIs.io network. Tagged areas include IEEE, Open Group, Operating Systems, POSIX, and Standards.

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6.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

IEEEOpen GroupOperating SystemsPOSIXStandardsUnix

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 6.8/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

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Resources

Other 4

Properties that don't map to a standard resource type

Standards

IEEE

Wikipedia

OpenGroup

Source (apis.yml)

aid: posix
name: POSIX
description: POSIX (Portable Operating System Interface) is a family of IEEE and Open Group standards that define a consistent
  operating system API, command line shell, and utility interfaces for maintaining compatibility between Unix and Unix-like
  systems. It is a specification rather than a network API, and there is no public REST or HTTP interface for the standard.
kind: standard
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/posix.png
tags:
- IEEE
- Open Group
- Operating Systems
- POSIX
- Standards
- Unix
url: https://raw.githubusercontent.com/api-evangelist/posix/refs/heads/main/apis.yml
created: '2025-01-01'
modified: '2026-04-28'
specificationVersion: '0.19'
apis: []
common:
- type: Standards
  url: https://pubs.opengroup.org/onlinepubs/9699919799/
- type: IEEE
  url: https://standards.ieee.org/ieee/1003.1/7700/
- type: Wikipedia
  url: https://en.wikipedia.org/wiki/POSIX
- type: OpenGroup
  url: https://www.opengroup.org/austin/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com